Music-leaf turner.



J. JOHNSON.

MUSIC LEAF TURNER.

APPLICATION FILED MAR.15, 1911.

1,067,343. Patented July 15, 1913.

4 SHEETS-SHEET l.

COLUMBIA PLANOGRAPH 'cuu WASHINGTON, D. c.

J. JOHNSON.

MUSIC LEAF TURNER.

APPLICATION FILED 111111.15, 1911.

1 067 343 Patented July 1-5, 1913.

4 SHEETS-SHEET 2.

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J. JOHNSON.

MUSIC LEAP TURNER.

APPLICATION FILED MAR.15, 1911.

1,067,343, Patented July 15, 1913.

4 SHEETS-SHEET 3.

0/2 Jarwa COLUMBIA PLANOGRAPH C0.. WAS IIIIIIIIIII c.

J. JOHNSON.

MUSIC LEAF TURNER.

APPLICATION FILED MAR. 15, 1911.

Patented July 15, 1913.

4 SHEETS-SHEET 4.-

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JOHN JOHNSON, OF ANTLEB, NORTH DAKOTA.

IEUSIC-LEAF TURNER.

Specification of Letters Patent.

Patented July 15, 1913.

Application filed March 15, 1911. Serial No. 614,677.

To all whom it may concern Be it known that 1, JOHN JonNsoN, a citizenof the United States, and a resident of Antler, in the county ofBottineau and State of North Dakota, have invented certain new anduseful Improvements in Music-Leaf Turners, of which the following is aspeci lication, reference being had to the accompanying drawings.

This invention relates to certain new and useful improvements in musicleaf turners.

The primary object of my invention is to provide a light, neat, compact,folding music leaf turner by means of which the leaves of a book ormusical composition may be successively turned in simply depressing areleasing lever.

Another object is to so construct a music leaf turner as to permit readyaccessibility to the leaf holding frames and to permit of the readyattachment of the frames to the turning mechanism.

\Vith these and other objects in view the present invention consists inthe combination and arrangement of parts as will be hereinafter morefully described and finally pointed out in the appended claims, it beingfurther understood that changes in the spe cific structure shown anddescribed may be made within the scope of the claims, without departingfrom the spirit of the invention.

In the accompanying drawings forming a part of this specification, andin which like numerals of reference indicate similar parts in theseveral views: Figure 1, shows a front elevational view of a music leafturner embodying my invention, the operating mechanism being covered bya cap. Fig. 2, shows an enlarged front view of the operating pintles thecap being shown in section. Fig. 3, shows an enlarged side view of theoperating mechanism with the cap in section. Fig. 1, shows an enlargedrear view of the levers. Fig. 5, is an enlarged top view of theoperating mechanism. Fig. 6, is an enlarged detached detail of one ofthe leaf turning frames. Fig. 7, is an enlarged broken detail of thefoot lever. Fi 8, is a central sectional view through the stand, showingthe position of the operating bar. Fig. 9, shows the rack detached fromthe stand. Fig. 10, shows my music leaf turner as attached to anupright-piano. Fig. 11, is an enlarged detached detail partly in sectionof the foot lever, and Fig. 12, is an enlarged sectional detail showingone of the cord guiding sheaves.

In carrying out the object of my invention I employ asocket 1, having amiddle lengthwise running bore into which is inserted the tube 2,forming the stand carrying the music rack. This socket further has threeopenings arranged to receive the reduced ends of the supporting legs 3.One of the legs has an obliquely running opening 1, as shown in Fig. 7,through which passes the lever rod v 5, which by means of the pin 7, isconnected to the releasing lever S, )ivo-tally held to the leg 8, bymeans of the pin 9. Through the medium of the spring 10, the releasinglever 8, is normally forced in an upward direction. The upper end of thelever rod 5, ends in the hook 6, as disclosed in Fig. 8. The tube 2, atits upper end is arranged to removably receive the lower socket 12, ofthe stay bar 11, to which the music rack 13, is secured, this rackcomprising a rectangular frame having the lower outstanding supportingledge 14:. This ledge is arranged to hold the sheet music or book, theleaves of which are to be successively turned and has two spacedopenings.

Secured to the stay bar 11, as shown in Fig. 3, are two supporting earsmarked 15 and 16, one held above the other and each ear has twoapertures in alinement with the two openings within the supporting ledgelat. Revolubly held within the apertures of the ears 15 and 16, are twopintles marked 17 and 18, each pintle ending in a flat head 20, eachhead 20, having a key hole slot 21, as clearly disclosed in Fig. 2.Surrounding each pintle l7 and 1S, and positioned between the ears 15and 16, are the actuating coil springs 21, to normally hold the pintlesunder stress, one end of each spring 21, being secured to a pintle andthe remaining end to one of the supporting ears. At its upper end eachpintle carries a ratchet wheel, the ratchet wheel 28, being secured tothe pintle 17, while the pintle 18, carries the ratchet wheel 24. i

Secured to the upper car 15, are two pallets, one being marked 25, andthe other 26, held respectively upon the screws 26 and 27. Each palletends in a hook 29. Positioned between the screws 26 and 27, is the screw30, which gives support to the bow spring 31, the ends of which contactwith the pallets and 26, to insure said pallets being held normally incontact with the ratchets 23 and 2%, as clearly disclosed in The springs21, normally tend to wind the pintles in a direction toward the left endof the music rack and the pallets 25 and 26, hold the spring actuatedpintles 17 and 18, against casual movement.

Secured to the rear of the stay bar 11, is a pin 35, which gives pivotalsupport to the crossise secured levers 37 and 38, the lever 38, endingin the pin 40, while the lever 37, has a similar pin 40', these pinsengaging the hooked ends 29, of the pallets as will be understood inreferring to Figs. 4 and 5. The pin 35, marks the fulcrum upon which thelevers 37 and 38, operate and in referring to Fig. 4-, it will benoticed that the lower end of the lever 37, is considerably longer thanthe lower end of the lever 38, so that one lever has a short operatingend and the other a somewhat longer operating end, each of theseoperating ends having a suitable opening. Secured to the rear of thestay bar 11, at suitable points are the guiding ears 42, through which achain or strand 1d passes, the lower end of which is secured to theupper hooked end L5, of a connecting wire 46, the lower end of said wireengaging the hooks 6, of the member 5, secured to the releasing lever 8,as disclosed in Fig. 8. This member at, has its upper end forked toprovide the two ends marked and 51, the end 51, being somewhatshorterthan the member 50, the first mentioned end being connected to the triple ver 37. The pintles 17 and 18, are held in parallel spaced relationwith their key slotted heads 20, projecting below the lower supportingear 16, as clearly disclosed in Fig. 2.

From the foregoing description it will be noted that the springs 21,normally tend to unwind the pintles, while the pallets 25 and 26, holdthese pintles against this unwinding movement. As the spring 10,normally forces the foot or releasing lever 8, upward there is notendency of the connecting memhere 414 and 16, to carry the lower endsof the trip evers toward one another, so that the tension of the spring31, is exerted in holding the pallets to their ratchets.

In connection with my present music leaf turner which has been shown anddescribed as a means to hold a six page composition, I employ two leafholding frames marked 56, one of them being shown in detail in Fig. 6.These leaf holding members may be made of sheet metal as shown, or theymay Fig. 5.

be in the form of a wire frame each having an operating shaft 5, thelower end of which extends below the supporting ledge 14, while theupper end of each shaft ones in a key head 59, including the flattenedportion 60, and the terminal enlargement or button 61. The heads 59, areof a size to snugly fit into the key slots 20, as disclosed in Figs. 2and 3.

As shown in F 2, in order to economize space and bring the two operatingshafts or pintles 57, as close together as possible, the ratchet 2-11,overlaps the ratchet 23. The operating mechanism including the pintlesand pallets is closed by means of a cap 65, shown in Fig. 9. The rack isproperly in three sections, the intermediate section including thestandard 2, and socket 1, the rack 13, carrying the stay bar andoperating mechanism, and the legs 3, whichare arranged to be detachablysecured to the socket 1.

In Fig. 9, the rack is shown as giving support to a six page musicalcomposition. The leaf carrying frames are secured to the composition bymeans of the clamps G6. The leaf carrying frames are inserted betweenthe pages by detaching the heads 59, from the pintles and placing thembetween the proper leaves when the lower ends 58, of the shafts 57, areplaced within the ledge openings when the upper hook ends 59, can becarried into the proper key slot. The frames are then swung to the rightwhich can be easily done as the ratchets in this movement work under thepallets. In this position one leaf carrying frame 56, is held againstthe other as shown in Fig. 9. The performer then has before him thefirst and second pages of the composition. When it is desired to playthe music upon the third and fourth pages, the operator slightlydepresses the lever 8, which results in drawing the connecting member1%, downward. This downward movement of the connec tion 14, results inboth levers 37 and 38, being rocked. However, as the end of the lever38, below tie fulcrum pin is shorter than the lower end of the lever 37,the upper end of the lever 38, travels farther with the same pull of themembers 14,-, than does the lever 37, resulting in the pallet 25, beingtripped first. As soon as the first leaf carrying frame is swung themovement of the member 44;, must cease. Otherwise the movement of themember 1 1, will result in springing the second pallet. As soon as thepallet 25, is actuated the spring 21, secured to the pintle 17, promptlyswings the leaf carrying frame in a half circle so that the framestrikes the music rack exposing page 3, of the music upon the oppositeside of the first actuated frame, while page four of the compositionwill be exposed upon the outer side of the second leaf carrying frame,as

will be understood in referring to Fig. 9. Now, as the members 50 and51, are both connected to the same operating member 44, it is importantthat the downward movement of the operating lever be nicely regulated;otherwise both leaf carrying frames will be released. lVhere carefullyoperated but one frame at a time will be released. When it is desired toexpose pages and 6, of the composition, the operator again depresses thelever, this time a distance greater however, than he did at first, sothat the second pintle is released. In this second and greatestdepression of the releasing lever 8, both pallets are released fromtheir connected ratchets, but as the first actuated leaf carrying frameis in contact with the music rack, no advance of this first actuatedframe is possible. Should it be desired to repeat the piece, theoperator would simply swing both the leaf carrying frames to the righttheir full limit of movement, in doing which the pallets willautomatically operate to engage their respective ratchets.

The construction described provides a regularly operated and simplyconstructed music leaf turner which can be used in connection with amusical composition including more than six pages. If the rack isdesired to operate a great number of pages, I would duplicate theoperating instrumentalities and use two foot releasing levers, firstactuating the first series of these pages and then the second set ofpages in the identical manner that the first was actuated and operated.

From the foregoing it will be noticed that the pallets act as detents tohold the leaf carrying members in proper position. The leaf carryingmembers are further at all times yieldingly held.

\Vhile I have shown the levers 37 and 38, secured cross-wise and heldupon a single pivot 35, it should be understood that the levers could besecured in parallel upon separate pins, itonly being necessary that thedistance from the fulcrum to the power point be different in the twolevers. So also while the member at, ends in two sections marked and 51,the member 4a, could terminate in a loop which loop would pass throughthe openings within the two levers.

Having thus described my said invention, what I claim as new and desireto secure by United States Letters Patent is:

1. In combination, a support, two pintles pivotally mounted on saidsupport, a spring surrounding each pintle secured atone end to saidsupport and at the other end to a pintle, a ratchet carried by eachpintle, a pivotally held pallet contacting with each ratchet, twopivotally held levers having arms of different lengths pivotally mountedon a base back of said support, a connection common to both of saidlevers, means to actuate said connection, two leaf carrying membersactuated by said pintles.

2. In combination, two pintles held in parallel, a music rack pivotallysupporting said pintles and having a ledge with two spaced openings,each of said pintles having a projecting end provided with a key slot, aspring surrounding each pintle having one end secured to a pintle andthe other end to said rack, a ratchet carried by each pintle, a palletcontacting with each ratchet, two pivotally held levers mounted on saidrack having arms of different lengths one lever contacting with each ofsaid pallets, an operating member connected to both of said levers,means to operate said connec tion, and two leaf carrying members eachhaving a projecting shaft, one end arranged to work into said key slotsthe opposite end held within said openings as and for the purpose setforth.

3. In combination, a music rack including a leaf supporting ledge havingtwo spaced openings, two supporting ears extending from said rack oneabove the other each having an aperture in alinement with said openings,two revolubly mounted pintles in parallel spaced relations within saidapertures, a ratchet secured to the upper end of each pintle, anactuating spring surrounding each pintle secured at one end to the rackand at the other end to the pintle, said springs being normally understress, a pivotally mounted spring held pallet in contact with each ofsaid ratchets, two piw otally mounted trip levers each contacting withone of said pallets one of said levers having a shorter power arm thanthe other, a suitably secured releasing lever, a connection extendingfrom said releasing lever and secured to both of said trip levers, andtwo leaf carrying frames each having a shaft arranged for contact at theupper end with a pintle and held at the lower end within one of saidledge openings.

4:. In combination, a music rack including a leaf supporting ledgehaving two spaced openings, two supporting ears extending from said rackone above the other each having an aperture in alinement with saidopenings, two revolubly held pintles in parallel spaced relation withinsaid apertures each having a key slot within the lower end, a ratchetwheel secured to the upper end of each pintle, an actuating springsurrounding each pintle secured at one end to the rack and at the otherend to the pintle said springs being normally under stress, a pivotallymounted spring held pallet in contact with each of said ratchets, twopivoted cross-wise held trip levers each contacting with one of saidpallets one of said levers being shorter than the other, a suitablysecured releasing lever, a spring to normally force said lever in onedirection, a connec- In testimony whereof I affix my signature, 1npresence of two Witnesses.

JOHN JOHNSON.

tion extending from said releasing lever having two ends secured to saidtrip levers, and two leaf carrying frames each having a shaft with a keyhead for co-action With C. J. SMITH.

said slots the lower ends of said shafts belVitnesses: ing removablyheld Within said ledge open- 1 H. N. ANDnRsoN,

ings.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

